Respecting their busy schedule, I got right into it!
What format or length password is best?
Q: I’ve heard capitals and alphanumeric characters are essential, but I also heard creating something really long, all in lowercase, is better. What’s the truth?
A: "Best" is really hard to quantify. Studies have shown that very long, all-lowercase passwords can be as secure as shorter, more complex passwords.
The downside is that using simple metrics like length or character types to judge strength isn’t fully accurate. For example:
- Password123! and AcUp6wq*tu_Y are both 12 characters long and use different character types — but one is much easier to crack.
There was an XKCD comic a while ago about using long, all-lowercase passwords instead of complex ones. But that approach relies on outdated ideas about entropy.
That said, these types of passwords can still be secure today — mostly because they aren’t super common yet. However, tools already exist that can guess these passwords when they become more popular (like this semantic guesser).
A method I often recommend is based on Bruce Schneier’s approach, where you create a personal passphrase and then apply your own unique alterations to make it more random. This makes for strong passwords that are still memorable.
If your personal info is online — say your address, phone number, or email on a resume — is that a security risk?
A: Absolutely. Any time you release your personal info publicly, anyone can access it.
This is a big deal when it comes to things like vishing (voice phishing). If your phone number is easy to find, you become a much easier target for those types of attacks.
Is 2FA essential? It’s kind of a pain.
A: 2FA is essential for anything that really matters.
The idea is simple: you want breaking into your account to be more trouble than it’s worth. For low-stakes accounts (like Pinterest), a strong password might be enough. But for anything holding sensitive information, 2FA is a must.
Is there a device that makes 2FA easier — like a physical fob?
A: Yes! There are MFA apps that centralize all your codes in one place (like Google Authenticator or Authy).
Some password managers can also store 2FA codes for you, but that’s a bit controversial — it puts all your security in one place, which some people (myself included) are cautious about.